Advertisements
Advertisements
प्रश्न
How is the unit horsepower related to the S.I. unit of power?
Advertisements
उत्तर
1 house power (hp) = 746 watts
APPEARS IN
संबंधित प्रश्न
A stone of mass m is rotated in a circular path with a uniform speed by tying a strong string with the help of your hand. Answer the following questions
1) Is the stone moving with a uniform or variable speed?
2) Is the stone moving with a uniform acceleration? In which direction does the acceleration act?
3) What kind of force acts on the hand and state its direction?
When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall

1) Name the force exerted by the table top
2) What is the direction of the force?
What do you understand by the clockwise and anti clockwise moment of force?
A body is provided at a point. A force of 20 N is applied at a distance of 40 cm from the pivot. Find the moment of force about the pivot.
What do you mean by a centrifugal force?
In the following case write yes, if the work is being done and no if no work is being done.
A man moving on the rough ground.
What happens to the power if the time for doing work is reduced from t second to t/10 second?
A machine raises a load of 750 N through a height of 16 m in 5 seconds. Calculate the power at which the machine works.
A coolie carries a load of 30 kgf through a distance of 500 m in 5 minutes while another coolie B carries the same load through the same distance in 10 minutes. Compare the
(i) work done, and
(ii) power developed. (Take: g = 10md−2)
